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Central heat and air

My central heat and air unit is blowing barely ( really weak aircirculation ) but everybody i called said that there is nothing wrong
then why can't it cool my house like it suppose too
my unit is 2 1/2 ton for an 1800 sqft house insulation is great and brand new

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Without knowing more information:

1. The evaporator coil could be frozen blocking air flow.
2. Dirty air filters will block air flow.
3. If it has a 2 or 3 speed motor, the highest speed should be used by the AC setting. It could be a wiring issue here. You
didn't state if this is a new problem or has it always been this way.
4. If it's a belt driven blower, the belt could be slipping.
5. If its belt driven, you might have an adustable pully on the motor, if so it needs to be screwed in as far as possible for max speed.

I had the same issue years ago. It was like that from the day I bought the house. Mine is belt driven, so I simply bought a larger pully for the motor, thus making the squirl cage spin faster, and I get plenty of air flow now.

That's about all I got for Ya...

Geno

Posted on Aug 02, 2008

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Posted on Jan 02, 2017

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